Salomé and Latasha began arguing about who did better on their tests, but they couldn't decide who didbetter given that they took different tests. Salomé took a test in Social Studies and earned a 80.8, andLatasha took a test in Math and earned a 68.1. Use the fact that all the students' test grades in the SocialStudies class had a mean of 73.7 and a standard deviation of 10, and all the students' test grades in Math had amean of 62.1 and a standard deviation of 8.8 to answer the following questions.a) Calculate the z-score for Salomé's test grade.z =b) Calculate the z-score for Latasha's test grade.z =c) Which person did relatively better?SaloméLatashaThey did equally well.

Salome's test grade: Mean = 73.7 , Standard deviation = 10 Social studies = 80.8 Latasha's test…

Answered: Salomé and Latasha began arguing about…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Lucille, Rocio, and Cristina are all taking College Mathematics but from different professors. They all recently took a statistics exam and the exam scores were normally distributed in each of their classes. Lucille's class had an average grade of 85 and the standard deviation was 3. Lucille earned 89.5 on the exam. Rocio's class had an average grade of 83 and the standard deviation was 4. Rocio earned 87.4 on the exam. Cristina's class had an average grade of 76 and the standard deviation was 6. Cristina earned 79.3 on the exam. Since some professors give harder exams than others, these students decided to use statistics to figure out who did the best on their exam.
Lucas and Alex began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Lucas took a test in Math and earned a 73.4, and Alex took a test in English and earned a 70.5. Use the fact that all the students' test grades in the Math class had a mean of 74.1 and a standard deviation of 11.3, and all the students' test grades in English had a mean of 60.9 and a standard deviation of 8.1 to answer the following questions.a) Calculate the z-score for Lucas's test grade.z=z=b) Calculate the z-score for Alex's test grade.z=z=
April and Heather began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. April took a test in Science and earned a 74.4, and Heather took a test in English and earned a 69.7. Use the fact that all the students' test grades in the Science class had a mean of 71.3 and a standard deviation of 8.9, and all the students' test grades in English had a mean of 60.5 and a standard deviation of 8.5 to answer the following questions. a) Calculate the z-score for April's test grade. b) Calculate the z-score for Heather's test grade. c) Which person did relatively better? April Heather O They did equally well. Submit Question logi $22 *3 F4 F8 7. 8. %4
The first exam for a Stats course had a mean of 80 and a standard deviation of 4 points; the second had a mean of 70 and a standard deviation of 15 points. Reginald scored an 80 on the first test and an 85 on the second. Sara scored an 88 on the first but only a 65 on the second. Although Reginald's total score is higher, Sara feels she should get the higher grade. Explain her point of view.
Kyle and Caleb began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Kyle took a test in Math and earned a 73.9, and Caleb took a test in Art History and earned a 70.5. Use the fact that all the students' test grades in the Math class had a mean of 73 and a standard deviation of 9,4, and all the students' test grades in Art History had a mean of 62 and a standard deviation of 10.3 to answer the following questions. * a) Calculate the z-score for Kyle's test grade. = 2 b) Calculate the z-score for Caleb's test grade. c) Which person did relatively better? O Kyle O Caleb O They did equally well. MacBook Pro 00 000 esc F4 F5 F6 F7 F1 F2 F3 24 4 %23 tab caps lock C2
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The mean grade of in the final examination in the mathematics was 85 and tje standard deviation was 7.in science , his mean grade was 89 and the standard deviation was 13.
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